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Find Air conditioning pros in Andover

Avatar for HVAC Doctor LLC
HVAC Doctor LLC
4.9(
28
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Andover, MN and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"After a no call/no show by another technician (during 3 weeks of 90+ temps, a sick spouse, 3 tired dogs & a pandemic), I called Hvac Doctor after finding a referral on Angie's List. My call was promptly returned & I was honestly told I would be contacted if an opening presented itself. Within a few hours & much to my delight after a restless night of sleep, I was called & my central air was promptly & accurately repaired. These guys are top notch professionals as well as knowledgeable. Hvac Doctor is now going to be my new ongoing routine maintenance technician as well. Search no more, call Hvac Doctor! Can I give them 10 stars?"
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+137

Response time1 day
28 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Hoffman Cooling and Heating
Hoffman Cooling and Heating
4.7(
2,072
)
Central A/C - Install

Serving Andover, MN and surrounding areas

Approved

Super Service Award Winner

In business since 1957

Free estimates

Emergency services offered

"24 hour emergency service is excellent. Our air conditioning stopped working at night so we called at 2:00 am and a technician was out and diagnosing the problem by 11:00 am. Excellent customer service, friendly and knowledgeable technicians and very professional company overall. HIGHLY Recommended."
 Twins!!
 Another set of twins!!
 Oil to gas conversion, took out a monster!!
Jim's new car
New install van!!

+5

1595 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Air Knights Heating & Cooling, Inc.
Air Knights Heating & Cooling, Inc.
3.9(
522
)
Central A/C - Service or Repair

Serving Andover, MN and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"I spent a long time looking for an accommodating and knowledgeable HVAC professional and Air Knight fulfilled all my criteria for a great service company. Phillip came to me and was quickly able to assess and deal with my air conditioning situation - believe me I contacted a lot of people and no one was as responsive as he was."
Furnace Installation in Burnsville MN
Response time8 hrs
9 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Aquarius Home Services
Aquarius Home Services
4.6(
260
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Andover, MN and surrounding areas

Approved

Super Service Award Winner

In business since 1987

Free estimates

Emergency services offered

"Aquarius Home Services' personnel are always friendly, efficient, and good communicators. Ryan Kahl did a great job for us servicing our water conditioning system. He is a good communicator and very courteous, exploring how he could provide additional help or service for us."
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Our Team
Response time12 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for Kody's Home Services LLC
Kody's Home Services LLC
5.0(
13
)
Central A/C - InstallCentral A/C - Service or RepairCentral Humidifier - Repair or Service

Serving Andover, MN and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Kody did a fantastic job. His communication skills,expertise, knowledge of his products, timeliness, job site tidiness and fair pricing were greatly appreciated. He installed a Goodman heat pump system ( heating & air conditioning), Mitsubishi multi zone mini split ( wall unit & recessed ceiling unit), an Aprilaire whole home humidifier, a UV air purification system and surge protection system for whole HVAC system. I highly recommend his services."
Old air exchanger
New air exchanger
New heating system
Old heating system
Old heating system

+3

Response time8 hrs
Response rate89%
3 neighbors recently requested a quote
Avatar for Mallard Mechanical
Mallard Mechanical
5.0(
11
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceCentral Humidifier - Repair or Service

Serving Andover, MN and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"I would recommend Preston and Mallard Mechanical to anybody in the area looking to buy a new furnace/AC, or even just general HVAC maintenance. We closed on our house on a Friday with the AC not working and the furnace on its way out. We called Mallard Mechanical that morning and the equipment was ordered that same day and the install scheduled for the following Tuesday. The day of the install Preston was on site right on time and got our old AC and furnace torn out and the new system put in all in the same day. He was extremely professional and kept a VERY clean work site. He made sure to go over everything about the new system with my wife and I and even took care of setting up the city inspection for the new system. Last but absolutely not least, Mallard Mechanical's prices are extremely fair and I cannot imagine finding better service anywhere else for as good of a price as we got with Mallard Mechanical. Thank you again to Preston and Mallard Mechanical!"
Response time3 hrs
Recommended by88%of homeowners
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FAQs for air conditioning projects in Andover, MN

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Andover, MN homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.